218 Bracket for Lever. drill. The latter is then packed in the slide rest, and firmly grasped, when the drilling may proceed. The hosses are surfaced to the scribed mark, and to the shaped lever; the diameter being gauged by callipers. When these are finished, the sides are marked out as at F, and the lever next clamped on an f angle plate ' placed on the table of a planing machine (see G), being packed at such an inclination that the edge may be planed • and four settings are of course necessary. The angle plate is an appliance which will be found useful for a variety of purposes. Now finish off the lever by draw-filing and ernery cloth. If the work be too long to allow the bosses to be turned, the latter are tooled as separate pieces, having a portion of the lever attached, and are afterwards welded to the handle by the smith. II. Brackets for Regulator Lever (Fig. 229).—First centre at the ends as at B, and punch; then try in the lathe to see if there is sufficient stuff at the middle. Turn the shank to dimensions, gauging \vith callipers, and cut the screw thread in the lathe at the same time ; the taper of the shank being obtained by setting the top slide of the rest by the requisite amount, and giving a hand feed to the tool. Polish while in the machine, with file aad emery, all but the collar, which maybe left rough, because it is to be afterwards cut; the diameter then being made equal to that across the corners of the hexagon. Now remove from the lathe, and, setting again on the table in the position B, line out the flat cheeks of the fork, and shape or mill these. Upon the tooled surface thus obtained further lining is performed as shewn. at c, the centres being again placed exactly horizontal. Strike the pin hole and punch. Drill the hole In machine vice to gauge, and, bolting down to the centre of a slotting or vertical- milling table i>, tool all round with hand and machine feed Once more line out, this time for the fork slot as at E, and also mark a circle for drilling, making sure that the line** is taken for this, not b. Drill the hole last marked, and take out the rest of tlie fork slot in the slotting machine, finishing by cutting the oblique portion In the vice by chipping arid filing (F). It may here be mentioned that all "bright work is held in trie vice between plates of lead resting on the jaws, and called * vice clams.' Lastly, cut the hexagon on the collar bf dividing out as at G, and filing off dae flats.